Repairing and replacing throat dampers in Key Biscayne
Freeing and re-hanging come before replacement, so new parts go only where the old ones cannot be kept.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
When the damper stops doing its job
- Plate will not open past halfway
- Damper stuck shut before a fire
- Crank turns without moving the plate
- Insects getting in through the fireplace
Jump to
Getting a stiff damper moving again
The ledge that sits behind the damper plate
Behind a throat damper there is usually a ledge called the smoke shelf. It sits at the bottom of the smoke chamber and catches soot, debris and anything that falls down the flue.
A crowded shelf can stop the damper plate from opening all the way. We clear it as part of damper work where the debris is in the way. If the shelf itself is cracked or the chamber walls need parging, that is smoke chamber work, and it is listed separately with its own explanation.
Handing the working damper back to you
When the work is done, we show you the control and the plate positions. You work the damper yourself while we watch. If anything about the feel or the movement is unclear, we explain it on the spot.
You also get a written record of the work. It says which parts were freed, re-hung or replaced and what was left as it was. Keep it with any fireplace manuals. It helps with later maintenance visits and gives the next owner a clear history of the damper.
How the throat shape affects the damper
The throat is the narrowed section between the firebox and the smoke chamber. It guides smoke toward the damper opening. A damper that sits crooked or opens short changes that path and slows the smoke.
When we replace a damper, we check that the new frame sits in line with the throat and that the plate opens toward the smoke shelf as intended. The goal is a smooth path for smoke, with the damper open, from the firebox into the chamber above.
When cleaning is not enough
Cleaning a damper removes soot, rust scale and debris, and it often restores movement. It does not straighten a warped plate, rejoin a cracked frame or replace a missing lug.
We tell you honestly when cleaning will solve the problem and when it will only help for a while. If a part is beyond cleaning, we say which part and why. That way you are not paying twice, once for a cleaning and again for the replacement it was never going to avoid.
Damper work priced item by item
- Smoke shelf debris clearance
- Throat measurement for a replacement damper
- Mortar drying and curing instructions
- Free written estimate before any work
Asked before damper work begins
My damper handle snapped off. Is a new control enough?
Often, yes. If the plate and frame are sound, a replacement handle or rod may be all the damper needs. We check the plate and pivots before ordering anything, because a snapped handle sometimes points to a stuck plate.
Do you need to remove firebrick to replace a damper frame?
Sometimes. Setting a new frame can mean removing and resetting some masonry around the throat. If that is needed, it appears on the estimate before you approve, together with how the brick will be reset.
How soon can I use the fireplace after damper work?
A new control or a freed plate can often be used once we finish. Where a frame was set in fresh mortar, the fireplace waits for that mortar to dry and cure as its maker directs. We tell you the plan.
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Local service. Careful repairs. A fireplace worth coming home to.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo